The Regulations Governing Labor by Prisoners Article 28

Prisoners selected for autonomous external work shall meet the following requirements:1. Those meeting the requirements of Subparagraphs 2 and 3, Paragraph 1 of the preceding article;2. Those who have been imprisoned for two or more months;3. Those whose term of sentence is less than seven years where the remaining term of sentence is less than two years or parole conditions shall be met in two years; or those whose term of sentence is more than seven years where the remaining term of sentence is less than one year or parole conditions shall be met in one year; and/or4. Those showing willingness for such work.Prisoners, who are in detention or liable for labor service from commutation of a fine, meeting the requirements of Subparagraphs 2 and 3, Paragraph 1 of the preceding article and Subparagraphs 2 and 4 of the preceding paragraph of this article shall be eligible to be selected for autonomous external work.
中文原文 受刑人作業實施辦法第28條
受刑人從事自主監外作業,應就具有下列各款條件者遴選之:
一、符合前條第一項第二款、第三款規定。
二、於本監執行已逾二個月。
三、刑期七年以下,殘餘刑期未逾二年或二年內可達陳報假釋條件;或刑期逾七年,殘餘刑期未逾一年或一年內可達陳報假釋條件。
四、具參加意願。
拘役或易服勞役之受刑人具有前條第一項第二款、第三款及前項第二款與第四款之條件,得遴選其從事自主監外作業。

English translation for reference only; the Chinese text prevails. Not legal advice.